摘要:
Diffusion resistant refractory such as alumina for containment of destructive fluorine and fluorine compounds in the molten salt oxidation of fluorine-containing organic waste, formed of a porous refractory such as porous alumina impregnated with a salt such as sodium carbonate, which is non-reactive with the refractory and compatible with the molten salt reaction medium, thereby effectively blocking diffusion baths for fluorine and its compounds from the molten salt bath through the refractory. Conventional refractories such as alumina bricks containing about 1 to about 25% open porosity can be placed in a molten liquid salt such as molten sodium carbonate, in a vessel which can be pressurized to force the molten sodium carbonate into the pores of the alumina brick to impregnate same and form alumina brick resistant to diffusion of fluoride-rich molten salt.
摘要:
A connector (1) and method of making electrical connection between an electrical conductor (7, 11) and a removable electrical device (2). The connector (7, 11) is an elastic material, such as silicone, that is both compatible with the environment and is an electrical insulator. It forces contact between the electrical device (2) and integral contacts (10, 13) in the connector (1) by virtue of its elasticity. The electrodes (4, 6) and the electrical connections are protected from the environment to avoid electrical leakage or corrosion of the electrodes (4, 6).
摘要:
An electronics filter circuit includes an electromechanical resonator that is mounted directly to the surface of a silicon integrated circuit, rather than being a surface mounted or leaded filter can on a circuit board. This filter circuit allows the integrated circuit electronic package to be significantly smaller than a conventional electromechanical resonator package. The electromechanical resonator may be protected during processing and during use with a protective cover that is made of a material such as titanium. The protective cover is attached to the integrated circuit chip.
摘要:
The invention is a method of bonding a ceramic part (6) to a metal part (4) by heating a component assembly (2) comprised of the metal part (4), the ceramic part (6), and a thin laminated interlayer material (8) placed between the two parts and heated at a temperature that is greater than the temperature of the eutectic formed within the laminated interlayer material (8) or between the metal part (4) and the laminated interlayer material (8), but that is less than the melting point of the ceramic part (6) or of the metal part (4). The component assembly (2) is held in intimate contact at temperature in a non-reactive atmosphere for a sufficient time to develop a strong bond between the ceramic part (6) and the metal part (4). The compact interlayer material (8′) may be further comprised of two or more sets of metal alloy spheres (16, 16′) each having distinct compositions. Further, the compact interlayer material (8′) may be formed of composite spheres (19) that are each comprised of laminant layers (18, 40) where each laminant layer has a distinct composition.
摘要:
An implantable miniature eyelid electrode apparatus that causes a paralyzed eyelid to close or open by passing an electrical stimulating current to a nerve or muscle, is comprised of a longitudinally flexible, nonconductive body containing electrodes that pass an electrical signal to the nearby nerve or muscle, which closes or opens the eyelid. The apparatus is electrically actuated by a source that may be located remotely from the apparatus. The electrical signal passes along wires from the source to the apparatus. The apparatus is biocompatible with the environment in the living tissue and is electrically insulated from the surrounding tissue, except where the electrodes contact the living tissue. The apparatus is very small and is not obvious to visual inspection when implanted.
摘要:
Molten salt process for destruction of fluorine-containing waste in a molten salt such as molten sodium carbonate, and forming fluoride salts in the molten salt bath. The destructive phase change of conventional alpha-alumina refractory of the molten salt retaining vessel in the presence of such fluoride salts is avoided according to the invention by employing phase change resistant beta-alumina refractory bricks.